Random Knowledge
What are the different states of matter?
Solid, gas, liquid, and plasma
Two equations are ___________________ if they have the same solutions.
equivalent equations
-4.5 = m + 1.9
m = -6.4
g/2.1 = -6.8
g = -14.28
5p + 2 = -10
p = -2.4 OR -2 2/5
What are the vocabulary words for this lesson?
Tectonic plates
Plate boundary
Plate tectnics
Convection current
Explain what a natural resource is.
Materials made in nature and used by humans.
What is the largest bone in the human body?
Femur
Adding the same number to each side of an equation produces an equivalent equation by canceling out subtraction or negative numbers.
Addition Property of Equality
g - 16 = -52
g = -36
16t = 60
t = 3.75
4y - 16.3 = -11
y = 1.325
Matching fossils found on different continents suggest that these landmasses were once...
Joined together/connected.
Fertile soil is important for what?
Growing crops and raising animals for food
What is the largest US state?
Alaska
Subtracting the same number from each side of an equation produces an equivalent equation by canceling out addition or positive numbers.
Subtraction Property of Equality
Create the correct equation, then solve for x.
27 is 12 more than a number x.
27 = x + 12; x = 15
-7.24q = 17.014
-2.35
-3(t - 8) = 32
t = -8
This process forms new ocean floor when magma rises, cools, and hardens along a long crack in Earth’s crust.
Sea-floor spreading
Can a renewable resource become nonrenewable? Why or why not?
Yes, renewable resources can become nonrenewable if the resources are not used responsibly.
The US is best known for what natural resource?
Agricultural land (fertile soil) and coal
The property that cancels out division to solve for the variable by getting it by itself, and producing an equivalent equation.
Multiplication Property of Equality
Find the value of 3x + 2 when 7 + x = 5
x = -2; -4
There are 92 students in a room. They are separated into 18 groups. How many students are in each group? How many students are not in a group?
92 = 18s; 2 students are not in groups
The cable company charges a monthly fee of $45. Each movie rental is $1.99. You owe $68.88. How many movies did you rent?
1.99m + 45 = 68.88; m = 12
What is the name of the supercontinent that scientists believe once existed?
Pangaea
Where are natural metals usually found?
At tectonic plate boundaries
Name at least FOUR states that were part of the 13 colonies.
New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, and Georgia
The property that cancels out multiplication to solve for the variable by getting it by itself, and producing an equivalent equation.
Division Property of Equality
You earn $9 per hour babysitting. This is $2 more than what you earned per hour last year. What did you earn per hour last year?
h + 2 = 9, h = 7
Your family took a road trip on Saturday. You were in the car for 4.5 hours and averaged 70 miles per hour. How many miles did you travel?
m/70 = 4.5; 315 = m
Kayla’s age is 3 less than twice her brother’s age. Kayla is 13 years old. How old is her brother?
2b - 3 = 13; b = 8
What is the name of the bone in our hip region, and what two genetic changes allow us to walk upright?
ilium; it shifted 90 degrees and took more time to harden into bone.
What are two reasons that natural resources are unevenly distributed across the Earth?
Earth's history, environment, climate, plate tectonics